Tape for slide fasteners



Sept. 8, 1953 N. J. Poux 2,651,092

TAPE FOR SLIDE FAsTENERs Filed Nov. 14, 195o 2 sheets-sheet 1 mill, uhmm..

2 12v 1oy 7 N W/////////// /w 1 JNVENToR.

05.4 d Doz/X 12'094 WMM Arme/v5( sept. s, 1953 N.A J. Poux TAPE FOR SLIDE FAsTENERs 2 Sheets-Sheet 2 Filed Nov. 14, 195C f3 l W/////////// JNVENTOR.

Patented Sept. 8, 11953 for and-.method off-making ,he-same. j

`A Slide' fastenereomnrisesfgenerally afp-air off Stringer tapeseachf. h ring a series. Q-f-spam attachedlltQIliQi-Bro'- ak-iie suehrlastietr. ser tapes .C0mpris ii1gfqriine the -tanewbye tr t and simultaneously forming the bead thereon-et the timed-.theextrud-ins process S0 ascii@ 2in-.integral-partathereof1.

.iurther'QbieCt- Qfthe invention to-nrc, vide an improved plastic s nge-r taperfon slide fasteners whiehe isf inexpenswe @mi-- W-h-ih Gar-1- be easil and-simply nia-nuiactuned.;

t isgstil-Ianetllier` object Qf ,13h-Q presenti-riventon 't6 povide plastic-stringe?. vih-i011- is; o'liirable,y and, at.v the same time, sufficiently exib1e ior. its. intended use. .r

Various otherfobjects andi adyan ages.; of. inyentizon. wil-15 he :noreapparent inthe" ourse of larly pointed cin-,1'in the. .appended claims;

Jil-tf1 for.'l the. 'uljpose {of ilistration.. an* empodiment and severa-1. modifieationsv thereof which my invention ina-y. assme in' practice.-

1111; theS- drawings Y Fig. 3 is a sectional.-vleyr ta/kernenlirieifoffv Fig. 4 is a sectional View taken on line 4 4 of Fig. 1; .L

beaded edge nintegral1-1yl arrangedthe foll'rX/ng specification, and-.Will e particnf e accompanying.-drawngsyfthere is shown` 211s .a fragment-e.@ld-.verbi mi M drm` with,

1 1s aplanviewjjof-a. slideastenerhavlng- 5 theimproved'stringer tape of my inventionf in ,l mediatelody portion as inali'terto loedescrita 50- plained'.4

It SLIDE FAsTENER's- Fgf.- 5 is .jacross sectionalyiw of a inodied forni of tape in accordance with: the present inve'n'tion.;

Fig.. 6 is" a A cross sectional' View of another modicati'on ofmy. invention;V

Fig. 7 isa cross sectionaif ViewV of still'' another modiifediorni of'tapeof this invention;

8l is aI verticalsection throgh an extrudingpress and die shovsr'igv howfnyfiinproved.r tape is made; and

Fig- 9 is a sctionalyiew tale'n onk line 9--9 of Fig. I n Fig. 1'l of@ the drawings, there is shown a conventional' slide fastenercomprising, apair `f Ofstrin'ger tapes 2-` each having beaded edges 3' arranged' inte`gr'al'1y tfieren ifth'` Which tape; togetherl with the b eadedf edge, is constructed in accordance with the present invention, Therev is attached to the opposed' Beaded' edges 3" of the 6 fr engagingy and. dsengagin'g the fasteer ele-f' known to those vs'iiiIIed--` displacement-ofthe cords-. be secnred. adhesivel-y tothe tape after itis formed` as show-ni. but preferably they are secred to the tape-.by adheSionat-'the time Off the formiing; by extrusionthereof InfBigQS, there.- isshoWfn a slight rnodi:ationy of the tape of my invention-. VThis. construc'tion is the saine-as; theipreferred form-in; that i-tQ'has preferably a thickened-:outer portion; .as fat- I3,

andi alfrelatively intermediate; .port-ioni,r as at I I invention' is' illustrated., thegstringr tape' 2 consists of' a' strip" 3 is formed integral with the tape at the time I9. The beaded edge of forming or extruding so as to provide substantially a tubular portion on opposite sides thereof along the edge. In other words; the beaded edge is of the same material as the 'body of the tape, namely, an all-plastic beadededge.

In Fig. '7, there is shown still another modification of this invention. This construction is the same as the preferred form in that it has a pair of cords 2l arranged in channels 22 on opposite sides of the tape along the inner edge thereof. The outer portion of the tape is relatively thick and split, as at 23, so as to provide two flap portions 24 and 25, which iiap portions are adapted to straddle the edge of the article to which the tape is to be applied. Between the beaded edge and this outer portion, there is preferably a relatively thin intermediate portion 2% as in the other forms of my invention.

There is shown in Figs. 8 and 9 of the drawings, apparatus for making the improved tape of the present invention. This apparatus includes an extrusion die having a die opening 3l which is heated by any suitable means (not shown). It will be understood that the opening in this die conforms to the desired cross section of the tape together with the beaded edge thereof. There is provided a cylinder 32 in which the particular plastic material M from which the tape is to be made is disposed. Within this cylinder, there is arranged a feed screw 33 for delivering the material to and forcing it through the die opening 3l in a well-known manner. Preferably in either side vof the die 33, there is arranged a pair of oppositely disposed openings 34 through which the cords C are introduced and delivered into and through the die opening 3i.4

The cords are delivered from a pair of reels 35 suitably mounted opposite these openings adjacent the die.

The tape, together with the beaded edge thereof, is formed by this apparatus in the following manner. When the feed screw 33 is rotated, the plastic material M in the cylinder 32 isfed by the feed screw into the die and forced through the die opening 3l therein. At the same time, the cords C are delivered to and Apulled through the die opening and integrally secured to the edge of the tape T as it is being formed and extruded at the die opening thereby producing the tape as shown in Figs. 2, 3, 5, and '7. If it is desired to ,produce the tape shown in Fig. 6, the cords are dispensed with and a suitable die is provided for forming the tape of the cross section shown in this view. Also, if it is desired to attach the cords to the tapeA to form the beaded edge after the tape is formed, again the feeding of the cords is dispensed with and a suitable die provided. The cords are then secured to the opposite sides of the tape after it has been by any suitable adhesive.

After the tape, together with the beaded edge thereon, is formed, the tape is introduced into a conventional chain machine vfor attaching theV formed preferably fastener elements 4 to the beaded edges thereof in a well-known manner so as to provide a fastener Stringer as shown in Fig. 4. It will be understood that it is the purpose of the thin section immediately rearwardly of the beaded edge and the fastener elements attached thereto to provide a more flexible section at this point so that the completed fastener will operate easily and be sufficiently flexible. However, if desirable, the body portion of the tape may be of the same `vthickness throughout its width.

" The cords C of the beaded edge are preferably made of twisted or interwoven strands of a fibrous material but may be made of iiexible strands of a suitable plastic material, or of exible wires.

As a result of my invention, it will be seen that there is provided an improved plastic Stringer tape for slide fasteners which is simple and inexpensive in its manufacture. Also, there is provided a tape due to its construction which is extremely flexible and durable. It will also be seen that there is provided a plastic tape having'abeaded edge integrally arranged therewith to which fastenei` elements can be conveniently and securely attached, and which will not readily become displaced from the body of the tape.

While I have shown and described an embodiment and several modifications thereof which my invention may assume in practice, it will be understood that this embodiment and these modifications are merely for the purpose of illusf tration and description, and that other forms may be devised within the scope of my invention as defined in the appended claims. What I claim as my invention is:

1. A tape for slide fasteners of the class described comprisinga strip of plastic material having a channel arranged on opposite sidesQ thereof along one edge, a pair of fabric cordsl with one disposed in each of said channels and.;v adhesively secured to said strip so as to provide; a beaded edge therealong, each of said channels adapted to act as a seat for said cords so as' to aid in maintaining said cords in position along said edge.

2. A tape for slide fasteners of the class described comprising a strip of plastic materialj having a beaded edge formed integral therewith,l said beaded edge consisting of a pair of fabric cords adhesively secured to opposite sides of said strip, and means formed in said strip along said edge for aiding in seating and maintaining said` cords in position therealong.

3. A tape for slide fasteners'of the class described, as defined in claim 2, wherein the body of the strip at a point immediately adjacent to and inwardly of the beaded edge is thinner than the remaining portion of the strip.

4. A tape for slide fasteners of the class de-l scribed comprising a strip of plastic material having a relatively thick outer body portion and a channel arranged on opposite sides of the strip along the opposite edge, said strip having a relaso as to provide a beaded edge therea-long, each of said channels adapted t0 act as a seat for l said cords so as to aid, in maintaining said cords in positionalong said edge.

NOEL J. POILI'X.

(References on followingl page) Number UNITED STATES PATENTS Name Date Poux Aug. 4, 1931 Trumbull Feb. 28, 1933 Wait Nov. 6, 1934 Hora Oct. 6, 1936 Brownsdon Oct. 5, 1937 Short Oct. 19, 1937 10 Stillschweig June 14, 1938 Lewis June 25, 1940 Number Number Name Date Boenecke Nov. 18, 1941 Dau Nov. 25, 1941 Adler Jan. 13, 1942 Poux Aug. 31, 1943 Slaughter Nov. 6, 1945 FOREIGN PATENTS Country Date Great Britain of 1942 Great Britain of 1949 

